You had me wondering as it was explained to me as a benefit. So I searched and fount a thread on magic mornings. Here's what I found.
Magic Morning Basics
What? Entrance to
Disneyland Park one hour before official park opening to ride select attractions
When? MM is currently offered on Sunday, Tuesday, Thursday, and Saturday (the days that start with "S" and "T"). And MM is ALWAYS one hour before official park opening. If you are still confused, check the DL online calendar which now has MM days on it (you have to do click on a day and then go to the "DLR Day Calendar" for your particular dates)
Who? There are two ways of gaining the opportunity of using MM.
1) Buying ANY ticket of 3 or more days. This will entitle the ticket holder to one MM admission. There are some exceptions such as Gay Day, military, and convention tickets, but most big name ticket sellers have MM eligible tickets (Disney,
AAA, Costco, So. Cal City Pass, most online sources such as ARES Travel)
2) Staying at one of the 3 onsite hotels (Grand Californian (including the new VGC DVC places), Disneyland Hotel, or Paradise Pier Hotel). This will entitle the hotel guests MM admission every day that it is offered during their stay (including arrival (yes, possibly before your room is ready) and departure days) regardless of where you buy your tickets from. For example, if a family was staying at one of the onsite hotels for a long weekend (visiting the parks Saturday, Sunday, and Monday). They would be allowed to use MM on both Saturday and Sunday; however, a guest staying offsite would have to pick one or the other.
How? For onsite guests, each guest must show their "Key to the Magic" card. This is just a fancy name for your room key, which you can also use to charge in-park purchases. It is given to each member of your party at check-in with the dates of your stay and that person's name. You also need a valid source of admission ticket for entrance. For guests staying offsite, you enter just like you would normally and the MM is deducted from your ticket. For all guests, there is no extra piece of paper or voucher needed for MM. That piece of paper that they give onsite visitors is just for information purposes. It, by itself, does not grant MM privileges, so you cannot pass it on to someone else. All you need is your ticket and if you are staying onsite, your room key.
So provided you buy at least a 3 day ticket it is automatically included.